HVAC DIY Tips & Tricks
Learn about the Seasonal Energy Efficiency Ratio (SEER2) and what it means for energy efficiency ratings of HVAC systems. Find out more about the differences between SEER and SEER2 in 2023!
The Seasonal Energy Efficiency Ratio (SEER) measures the energy efficiency of HVAC systems. It measures the cooling output of an AC over a typical cooling season in relation to total energy input.
SEER2 is the new standard, and its calculation uses the new M1 procedure for blower testing.
SEER2 includes the total heat removed from the conditioned space during the cooling season or the total heat added to the conditioned space during the heating season.
The new M1 testing procedure increases the external static pressure by 500% to better match the actual conditions of installed equipment.
The efficiency standards changed in 2023 because the DOE and the HVAC industry could see that SEER calculations were not based on real-world conditions.
SEER2 attempts to better to simulate the real world in a test environment. The higher the SEER2 rating, the lower the energy consumption.
High SEER ratings offer numerous benefits: Lower utility bills, Reduced emissions, Improved comfort, Enhanced air quality, and Longer lasting equipment
It’s logical to assume that because the higher SEER system is more efficient, it will not only decrease your energy costs but will also run less, which means it should last longer.
If you go the extra mile and purchase a high SEER2 two-stage or modulating AC or heat pump, you also benefit from having a more comfortable home.